Oil-burning system.



J. R. BROWN.

OIL BURNING SYSTEM.

APPLICATION nun JULY 25. 1914.

1 1 2 44 1 Patented Dec. 8, 191% 2 SHEETS-SHEET-l.

J. R. BROWN.

OIL BURNING SYSTEM.

APPLICATION mum JULY 25, 1914.

1,120,441 Patented Dec. 8, 1914.

2 SHEETS-SHEET 2.

/1 TNE55E5. [/vvE/v 727R.

I J0 N/FUBE 75/? MV.

UNITED STATES PATENT OFFICE. I

J'QEN BOBEBTBBOWN, 01 VANCOUVER, BRITISH COLUMBIA, CANADA, ASQIGNOB. O1

ONE-HALF To ROBERT tann ns, 01 NEW. WESTMINSTER, CANADA.

- orn-nunnme 'svsrsn.

Specification o1 Izetteislatent.

' Patented Dec. 8, 1914.

Application filed July 25,1914 serial No. 853,229.

To all whomit may-concern:

13s it known that I, J 01m ROBERT'BROWN, a subject of the King of Great Britain, and a resident of the cit of. Vancouver, in the Province of British ol-umbia, Canada, have invented certain new and useful Improve-- entirely eliminated.

A further object is to devise an oil burning system adapted to utilize either steam or compressed air, with equal facility and at the-will of the operator, for the atomizing of the oil, thereby making the system inter changeable and adaptable to varying standards of oil.

A still further object is to devise an oil burning system the construction of which is such that it can be applied to any boiler without makin any structural alterations to the same, an which is simple and easily connected to, or disconnected "from, the boiler, so that it is only a matterot a few minutesqto convert the boiler from. an oil burner to a coal or wood bllIIlBl,-Sll0llld a contingency arise necessitating such change.

lattain the objects oi my invention by the means illustrated in the accompanying drawings, in which .lr i re 1 is a side elevation of my oil burning system, the boiler being shown in or two bricm at each en section; Fig. 2 is a view of the front end of the boiler. Fig. 3 is a side elevation of the burner, in section.

Similar-figures of reference indicate s1m ilar parts throughout the several views.

icallocomo- 1 represents a portion of a t tive boiler. 2 isthe'firebox t eof.

3 are the grate bars.

4 are removable fire=bricks,covering:.the grate bars 3.

*5 is the aslipit.

6 are draft openings through the firebrich covering 4, ma e by remov n of the as shown in Fig. 1, toallowcfor the passage of air from the ash it intothe firebox. u

tion 32 by means of whichsteam-may b83110 7 is a bridge of fire rick.

one eb ox 8 is the furnace door.

9 is the ashpit door. 10 1s a pipe coil carried by, and secured on the inner side of, the furnace door 8 so as to extend into the furnace when the door: is closed, as shown in Fig. 1. The ends of .the coil are carried through-the door 8 and are provided with the unions 11 and 12 respectively.

l3 is a burner of a kind similar to that shown 1n Fig. 3, having a pair of nozzles 14 and 15 extending into its atomizing chamber 16, which nozzles are positioned one directly above the other, the upper nozzle 14 being for oil and the lower one 15 for steam.

or air. The outer ends of these nozzles are adapted for the connection of pipes thereto.

17 is the main oil storage tank, from WhlCl'l the oil is takenwhen-the boiler is under full steam.

ing up, as hereinafter described more fully.-

19 is a compressed air storage tank suitably supported on top of the main oil tank 17 and preferably in proximity to the supplementary 18.

20 is a wentilatoripipe, and 21 a filling: pipe, for the main tank 17.

22 is 'aventilator pipe from the tank 18 leading into the main ventilator pipe 20.

23-isthe manhole door giving access into the main tank.

24 is e. drain from the main tank.

25 isa steam driven pump, having an oil by means of which the oil is drawn from the tank 17 and delivered to the burner 13 and also the air for atomizing delivered to the tank 19.

lnrwer nozzle-L15 by means oi the T connection 32, nipple 33, and elbow same-.

adapted for d1sconnection therefrom by means of the union 35. r

36 is a pi e connection between the lower outer end 0 the coil 10 and the T conneccylinder 26 and an air compression cylinder 2 supplied to the nozzle 15, and which pipe may be disconnected from the'coil by means 5 the pipes'will be then closed. New, to start! I pIementary tank 18 to the burner, this pipe of the ?union 11.

37 is a steam pipe connection. from the steam space of the boiler 1 to the upper.

outer end of the coil 10, to which'it is de tachably connected by means of the union 12.

38 is the oil suction ip e from the main tank 17 to the oil cylin er 2 6, which pipe is provided with a shut-01f cock 39.

40 is an internal oil suction pipe forming a continuation of pipe 38, its inner end being provided with an elbow 41" and extending near, the manhole of the-tank so that thescreen may be conveniently withdrawn for cleaning. 1

44 is the main oil discharge pipe from the cylinder 26 to'the burner 13, which pipe is connected to the up er nozzle 14 by means of-the elbow 45 an which ma be discon-' nected therefrom by meansof t e union 46. 47 is the oil discharge pipe from the supbeing connected to the main pipe 44 means of a-suitable T connection 48.

49 is an overflow pipe from the main pipe 44, whichpipe is rovided for the purpose of conveying surp us oil, not used by the burner, back to the storage tank 18. v

50 is an overflow pipe from the tank 18 to the tank 17, provided to insure that the oil will not rise above a certain level in tank 18. 51 is a gage glass for tank'18.- 52 is a safety. valve for the compressed air tank 19.

53' is a pressure gage for-tank 19.

54 is a stop valve on .pipe 47. 55'is; a stop valveon pipe 49. 56 and 57 are stop valves 1 on pipe 31, '58 is a stop valve on pipe 30. 59 1s a stop valve on pipe 36. 60i's'a stop? valve OIIPIPG 44. v61 is a stop valve on' pipe 37, these stop valves being provided 'as 1 shown for opening and closing'their 'respective pipes, hereinbefore described, or the system. l f

Having thus indicated the'principail parts of my invention I will'now' describe the 50, and the-tank 1 9 "contains com resse air" manner in which "it operates. When my systern is read for operation the main tank 17 ,is full of 011, the supplementaryoil storage "tank 18 contains oil. u

that is, up to the love of the overflow ipe at'suit'able ressure The stop va; ves on all 10, and pipe 36.

require to its normal level,.'

up, the stop valves 60, 54, 55, 56 and 570m I pipes 44, 47, 49, and 31, res ectively, are opened, allowing the oil to ow from the storage tank 18 to the burner nozzle 14 into the atomizing chamber 16.where it isatomized by the compressed air stored in tank 19, fed under pressure through pipe 31 to the nozzle 15, and being vigmted continues burning until suficient steam has been generated to start the pump 25. It will be understood, of-course, that the capacity of the oil and air storage tanks, 18 and -19 respectively, is sufficient to keep the burner going until steam has beenraisedin the boiler for starting, the pump 25 to draw from the main tank 17. .Sufiicient steam having been generated, the stop valves 54 and 57 on ipes 47 and 31 respectively are closed and he stop valves 61, 59, and 58 on pipes 37, 36, and 30 are opened, also theshut-off cock 39 is opened. then started anddrawing the oil from the he pump 25 is main tank '17 delivers it to the burner through pipe 44 to'pass out through the nozzle 14' into the chamber 16 where it is atomized by'the steam passingv {through the nozzle 15 from the pi 37, super eating coil he atomized mixture, emerging at the point of the burner within the furnace, continues to burn as long as the supply pipes are'kept open, The stop valve this tank'is kept constant by the operation of pum 25 so as to be restdy for use when Should it be fdund, durin operation, that the oil, on account 0 low standard, is not atomizing and as under this condition it is known to atomize better with compressed air, the stop valve 59 on pipe 36 is shut,-at the'same time opening the stop valve 57 on pipe 31, thereby admitting air to nozzle 15 instead of steam, the change beingaccomplished in a few seconds wit out cessation of the firing. In order to kee the oil in the supplementary tank 18 at its normal level so that it is alwaysav'ailable for starting up purposes the um'p 25 delivers four times as much oi "to t e burner as it requires for firing purposes, the excess oil passing, under'pressure, through the overflow pipe 49 back into the tank 18. Should circumstances arise necessitating the discarding temporaril of the oil burning system, the boiler may e immediately ada ted for firing with wood or coal by simply s utting ofl the stop valves of the oil hurnmg system, disconnecting'the unions 11 and'12 and swirl "ng ipes 37 and 36 clear of the outeren s of t e coil 10-. This allows thefurnace door 8 .to be opened and closed in the usual manner; After the firebricks have been removed, the boiler is 5-8 on pipe 30 being open, the pressure on I I well with steam,

rai iy i 11 firin with woodor' co It may he m'e fitionedt at natural draft when using oil is obtained by means of theopenings 6,

and that the natural draft prevents the burning out of the coil 10, since there is always a current of air passing around the col It will be seen, therefore, that I have devised an oil burning system which is selfstarting, is adapted to utilize either steam or air, with equal facility, for the atomizing of the oil, and which can be applied to any boiler without necessitating structural alteration to the same. It will also be seen that my system can be easily and quickly disconnected from the boiler to enable the boiler to be fired with wood or coal again if necessary, and thus repairs may be executed to the oil burning installatlon without putting the boiler out of commission.

What I claim as my invention is:

In an oil burning system, the combination with a boiler having the usual furnace, furnace door, and grate bars, a removable heat insulating floor covering the said grate bars and having a plurality of draft openings therethrough, and a burner having a steam or air nozzle and an oil nozzle extending into the furnace through the furnace front and supported thereon below the said furnace door, of a steam coil on the inner side of said door having its ends extending outwardly therethrough and respectively in detachable connection with the steam space of the boiler and the steam or air nozzle of the burner, said coil being adapted to swing with the door when opening or closin same, a main oil tank, a supplementary oi tank, acompressed air tank, a suitably operated pump, a suitably operated air compressor, a suction pipe connection between the pump and the main oil tank, a discharge pipe connection between the pump and the oil nozzle, a pipe connection between the supplementary oil tank and the pump discharge pipe, a tank overflow pipe connection from the supplementary oil tank to the main tank,

a burner overflow pipe connection from the pump discharge pipe to the supplementary oil tank, an air discharge pipe connection from the air compressor to the compressed air tank, a pipe connection from the said air tank to the steam or air nozzle, and valves for opening and closing all the said pipe connections, said valves eing disposed so as to provide for the admission of steam or air to the steam or air nozzle interchangeably from the steam space of the boiler or the compressed air tank and of oil to the oil nozzle interchangeably. from the main oil tank or the slulpplementary oil tank.

Dated at ew Westminster, B. (1., this 8th day of Jul 1914.

J iiN ROBERT BROWN. Witnesses:

HENRY Lovnxm Enmonns, ARTHUR RAMSAY CREIGH'ION. 

